Button-blank-cutting machine



5 Sheets-Sheet 1 l. H. GLEICH u BUTTON BLANK' CUTTING MACHINE Filed .Jly21. 1922 WIT/755.5'

May 21, 1929. 1. H. GLElci-l 1,713,695

BUTTON BLANK CUTTING MACHINE Filed July 21, 1922 5 Sheets-Sheet 2 May21, 1929.

l. H. GLEICHI BUTTON BLANK CUTTIN'G MACHINE Filed July 21, 1922 5Sheets-Sheet 3 MHV,

May 2l, 1929'.y '1. HjGLx-:lcH 1,713,695

BUTTON BLANK CUTTING MACHINE Filed July 21, 19.22 5 Sheets-Sheet 4Patented May 2l, 1929.

llllll'llt STATES ISAAC H. GLEICH, F NEVI YORK, 11T. Y.

BUTTON-BLANK-CUTTING IvIACl-INE.

Application lefluly 21, 1922.

rl`his invention is au improvement in button makin g and especiallyrelates to the manufacture of pearl buttons `from deep sea shells. Thegeneral objects of the invention are to lesseiithe cost of productionoit button blanks and to expedite the mal-:ing ot the blanks byincreasing the utility of the shells and by automatically cutting anumber' oit blanks simultaneously in a most economical manner, insteadot cutting them singly by successive operation as is necessary by thepresent known method ot, and machines tor cutting such shells.

rlhe more specific objects ot the invention are :-(l) to provide a twinblank cutter head ot the character hereinafter' referred to, with ashell support that is simple and rigid in construction and efficient inoperation j (2) to provide means :tor supporting irregular shellcontours at a number ot' points simultaneously and evenly; to providemeans 'for accurately gauging' the shell; to provide means to alleviatethe hard manual labor which ocean pearl blank cutting at presentinvolves.

il/'ith these and other objects in view, which will be more apparent asthe speciiication prof oeeds, the invention resides in certain novelconstruction and combination and arrangements ot parts, the essentialfeatures oit which are hereinafter fully described, are particularlypointed out in the appended claims, and are illustrated in theaccompanying drawings, in which:

Figure l, is a vertical sectional view oi a support and a backer for atwo cutter machine.

Figure 2, is a front view oi same.

Figure 3, is a plan view, partly in section olf another form of thecomplete machine.

Figu re 4l, is a vertical sectional view on line iwi ont Figure 3.

Figure 5, is a transverse Sectional view in line .55 ot Figures 3 and1l.

Figure t3, is a transverse sectional View in line (5 6 otlligures 3 andIl.

lligure 27, is a transverse sectional View in line 7 7 oli Figures 3 andl, showing' construction el: a tailstock where supporting pins areadjusted `with. a iiuid pressure.

Figure 8, is a plan view part-ly in section of a shell support wherepins are adjusted with a spring. f

Figure 9, is a front view oi same.`

`Figure l0, is aside view ot a gage;A

position.

Serial No. 576,533.

Figure ll, front View of same, in a somewhat diagrammatic torni, thesolid lines representing the form ot the gage, the broken lines those ofthe cutters. Figure l2, is a large detail View in a diagrammatic torni,showing the relative position et the gages and supporting pins. Figure13, shows gage in use on the iirst line of blanks cut in a new shell.

Figure 14, shows gage in use when once a line of blanks has been cutfrom a shell.

Figure 15, shows when both gages are in action.

Figure 16, shows gage in use on last blanks in a line.

Figure 17, is a cutter remover.

Figure 18, is a iront View of same.

Figure 19 is an enlarged detail view oit the chuck with the cutterremover in working Figure 20, is a diagrammatic view of a portion of theshell showing the manner in which the spaces traversed by the cuttersoverlap.

The invention may be classed under tive general subdivisions, viz

l. rlhe support and tail stock for a machine with two cutters asillustrated in Figures l The support and mistook for two cutters.

Due .to the extent to which the shell forms vary they do not attord ageneral utiliziation ot' them with a machine ot a large number ofcutters. The number et good blanks that nia-y be cut simultaneouslydepends upon the degree ot flatness of a shell. The shells there foreshould be lirst assorted accordingly and so used.

' te'lierring to lligures l and 2 of the drawing in the presentapplication, lis a standard supporting the tail stock of abuttonblank-cutting machine, and is preferably integral with bed 2,supporting the head stock. A cylindrical shank 3, slidably mounted instandard v l is held from rotationby splines tiormed los in the standardand litting into groove in the shank, and has two pins 6 rigidlyfastened init. Pins 6 may be of any suitable design so as to engage andsupport the stockandmay comprise a cylindrical body 7, formed at its endface with a circular row of teeth'S, a central stud 9, and separatedrointheteeth by an annular recess 10. i j

The pins 6 are placedV in concentric 'relation with the cutters, asillustrated in Figure 3 so that their recesses 10 aline with the cutters,and` the latter can enterfthe recesses when they have completely cutthe blanks from the Y stock.- The pins are spaced apart sothat thedistance oi the center ot one pin to the center of the other pin isequal to the diameter ottwo blanks plus the 'thickness of two cuts madeby aY cutter, as illustrated in Figure 12.

rlhe construction and the arrangement ot the pins 6 will vafford supporttor the shell at each'one of the two ipoints cut at each cuttingoperation and will prevent the breaking of the shell beforethecompletion of the cut. The end tace of the pins may form an arc Vhavinga curvature equal to the curvature ot the average shellbeing cut so asto'better seat the shell.

In `Figure 2O is shown in a somewhat diagrammatic i'orm. the,v mannerVin which the machine operates upon the shell so-as to etf Vtectthegreatest economy, there being only the thickness of one'cut wastedbetween any two adjacent blanks.v VIn saidFigure the Yshaded portionrepresents the amount cut awayby the cutters. v

Square shanked pins 1l are slidably mounted in suitable bearings 12formed. in the j j mounted on the tubing forthe inlet and out- -let onboth sides of the cylinder, so that'the shank 3' adjacent each supportand made to project beyond the serrated edges of the supports. Theunderside of the projections are Ypiovided with grooves 13 suitablyshaped to engage a shell at points 14 (Fig. 15)

formed thereon by two adjacent recesses rmade by a cutter and serve togage and steady the rsto'ckduringr the cutting process.

The is vslidabl'y held between a spring 18, lightly tensioned betweenbottom ot bear ing 12 and innerend of the gage, and a ieatherl fastenedto shank 3 by pins 16, and

bearing on shoulder 17 formed inthe gage.

VThe position of the gages with relation to the supporting pins will betaken up later as the specification continues-` Rod 2O has one endthreaded into aperture 21 in shank 3, and the other end fastened to rod22 by a bolt 23, carried thereby and adjustable in slit 24 of rod 20.Thispermits f `the lengthwise adjustment ot supporting means withrelationto the cutters independentlyot cylinder 27. Rod .22 is threadedinto aperture VV25xin piston 26,'slidably fitting-in l cylinder 27.

, Rod .2S-has Yone endv 29V threaded intopiston 25 and the other endful'crumedat 30 to a lever`31 pivotedat 32 instandards A33, sup

ported on the bed of the oted at 34 to iod 35. j

Being that the ejecting mechanism in a two cutter is similar to the oneshown in Figure 4, rod 35 Amay be connected as at 157l to vlever 153 tooperate said mechanism; The

cylinder 27 is mounted on the standards 36 supported on the bed 2 withits flanges 37, fastened down to flanges 38 ot the standards by bolts39.

A hand-operated valve 40 mounted on the bed-2 is connected with the maininlet41,

and exhaust 42, and with theiinlet 43 and cx-v between piston andcylinder walls cushion t-he shocks-of the piston. As the operation ofteedingthe shell to the cutters is slower than the operation of theejectors against the blanks, the lever 31 should be pivo-ted where itwill make up thisditference in speed. Or

machine and piv Vend Vot the cylinderthe 4piston and connecspeed boxes'(detail not shown) may be movement ofthe piston may be regulatedindependently ot the hand-operated valve.

,The mit Stoa/f: and operated 5?/ a final.,

. In Figures 3`to 7' is shown another .torni of vthe machine. lSupjfoited. oii'standards 47 j )drete'rably integral with bed 2 is a ifluidpressure cylinder 48 capable of longitudinal ad justinent on'the'standards by bolts 49 threaded into 'flanges 50 ot the standards andloosely iitting in slits 51 through flanges 52 made integral with thecylinder 48. Y

Member 53 which is preterably of a single cast, has a. cylindrical head54 which is rigidly tastened into Acylinder 48 and Asame isV madeair-tight. The front end 55 ot' the Vsuitable pins 59j, oneen'dlotwhicli entends outward and kbeyond the taceV ot tapered' head 55 andmay carryV means'tor sup-porting Y arshellunder a cutter such asdescribed above.

rlhe other endl60 of eachpin is threaded and liasa piston (51slidablyitting in a cylinder '.u-

62 formed in the member 553, rigidly fastened thereon between shoulder63 and nut 6ft.

The end faces ol the pins form an arc 65 equal to the curvature of theaverage shell being cut so that each pin will engage the maximum surfacearea of the piece of shell that is turned into a button blank. Thesupporting pins are placed in concentric relation with the cuttersarranged and spaced as previously described with reference to Figs. land 2. Thus their center distances are equal to the dian'ieter ot twoblanks plus the thicknesses oi two cuts made by a cutter. rlhe angularconstruction ot bearings 57 and those parts ot' the pins working thereinwill prevent saine from rotating under the revolving critters. SpringsGti abutting on one end against wall 67 ot' member 53 and the other endagainst a collar (SS rigidly held on the round portion ot pins 59 by setscrews 69 tend. to keep pistons (il and their pins inwards and cushiontheir 'tor vard movements.

rlhc several pistons are preferably ol equal diameters so that byadmitting a fluid pressure into cylinder t8 the pistons 6l will receiveequal pressure, and will push pins with an equal torce in backing up theindividual blanks under the cutters during the cutting process. Theshell, due to its uneven surface and structure, when placed on a supporthaving three or more pins arranged as shown, will rock on some of thepins and not come in proper seatingcontact with others. rl`his will beovercome as soon as pressure oit the cutters is brought to bear on theshell and. on the pin or pins it rocks on, because the inward pressureet these pins with the constant pressure present in the cylinder willcause that equililn-iuni among all the pins where they lwill properlyadjust themselves to the contour of the shell, and with the furtherintroduction of pressure inte the cylinder they will present asubstantially7 good support to all the blanks until the completion otthe cut. At this time the cutters will have slightly entered therecesses l0 in the supporting pins and the pistons (il will have reachedwall 70 in member 53 which will prevent their further outward movement.rlhe space between the shell and a. pin, that comes in supj'ortingContact with the shell only zitter the shell has been pi ssed to it, issmall. so that the tui-ther inward movement et the pins and pistons thatcome tirst in Contact with the shell into their cylinders may benegligible as they hardly atleet. the general behavior ot the pistonstrom distributing an equal counter-pressure.

Freierably integral with a supporting pin 59 on one end et the device isan elevated projection 7l carrying a gage 72 removablyA g Preferablyintegral with a support- 'ng pin 59 on the other end of the device is a.projection 76 horizontally disposed, having a square undercut 77 toreceive a gage 72 which is removably mounted therein by means of athreaded bolt 79 extending through aperture 8() in the projection andmeshing with threads Sl in the gage. The gages 72 and 72 are providedwith grooves 1,3 like that shown in Figures 10 and ll, and arepositioned with relation to their adjacent supjiiorting pins asillustrated in Figure l2.

A. hand operated valve 82 connected with the tubing 83 and Slt for themain inlet and exhaust of pressure is mounted on the bed el the machineand is also connected with the tubing 85 leading to cylinder l-S and thetubing 86 leadinginto cylinder A87, supported to the underside of bed 2,and working the ejector mechanism7 and controls the inlet and exhaustet' the two cylinders. Pressure regulators 88 which may be of a knownform are mounted on tubings 85 and tubings 8G to regulate the inlet andexhaust et the cylinder working the supporting pins and ot the cylinderworking the ejecting means independently ot the valve for the reasonvdescribed. Flexible tubings 89 may be used. to

connect the cylinder 41:8 with steel tubings 85 and will permit thelongitudinal adjustment ot said cylinder with relation to the cuttinghead in the original tube connections.

Pins actuated by a spring.

A, cylindrical body 90 has three bearingsl 91 square in cross-sectionand in each of which is slidably mounted a pin 92, the outer lends ofwhich may be provided with shell The seating heads of a knownconstruction. end faces of the pins 92 may form an arc 93 of a curvaturecorresponding to the curvature of the average shell. Each pin is placedin concentric relation with a. cutter as illustrated in Figure 3. Theinner ends of pins 92 abut against spring plate 94s held at two pointsby projections 95 carved out of plate 96; same is 'fastened to the bodyo't the cylinder by screws 97. Clearings 98 allow spring plate freemovement. Glaging pins l1 are slidably mounted in suitable bearings 99formed in the body and may be held forward by springs 100. lt will beseen that vthe operation of these gages in their bearings is similar tothose shown in Figures l and 2 and their construction and relativeposition with their adjacent pins are like that shown in Figures 10, lland l2. The cylinder or head 90 is lUO suitably formed. to be slidablymounted in f standard l and is adapted to be rigidly fastened tothreaded portion on rod 2O by threaded aperture 101 or by any othersuitable-means. Groove 102 in head 90 fits on splines 4 formed instandard 1 and prevents saine fromk rotation.

The projections 95 come incontact with' s arinfr )late 94 and resaectivel su a )ort saine Ythe spring'plate.

Y their bearings.

`between two adjacent supporting pins at points where the leverage otthe center pin will be substantially equal to those on the end andvwhere the inward pressure applied on both ends ot springf plate 94 willcause an equal outward pressure by the center part of A plate103fastened to the aceotthe Vbody by screws-104 carries pins 105extending into eloiigat'edslits 106 ot supporting pins, permitting-thesupports iree j play but preventing them from unduly vextending A devicesuch as this, or the ones shown in Figures 3 and 4 and described above,may be used Wherever it is desired to have ajnumber Of points supportedsimultaneously under a uniform pressure. i

-' The gar/ug md @caching/.merma j Figure 12 shows a diagraii'iinaticview and illustrates the relative position ot the gages with theirrespective supporting pins and cutters. A B .C iiisaid ligure representeach a lineof blanks as they are cut trom the shell.

The gage11 as illustrated has a groove 13` Y in the form of two equalarcs 107, hai/'ing a common root 108. The radius of each arc as showninFigure 11 is equal tothe radius ot the outside eta cutter 'l09, withwhich it is used and tends to gage and steady the shell at points 14formed thereon by ltwo adjacent one wall ot the cutter.

cuts. The gage 11 is located near one end ot Vthe supports with itsgrooved face adjacent blank 110 that is in line B, so thattlie point 0 1lroot 10,8 and the vcenter of blank 110 are inthe same vertical linethat is numbered `112.

The distance from the vertical central line across this gage to thevertical,centralfline 111 across itsadjacent support 7 is. equal to thedistance ot two adj acentpoints 14 inthe shell, namely one blank plusthe thickness of The distance between the centers of the adjacentsupports 7 and 7 aie equal to the diameters of two blanks plus two`wallsot a cutte It `will be .apparent from the above description andthe accompanyingl drawing that whenever any point 14' inthe shellisplaced into groove oi gage 11,

other points in the shell will be on the vertical central line oi" therespective supports and i cutters so that they will cut blanks that are,A.between two adjacent recesses ina-de by preceding cuts and permitcuttersjto workoutside shell so that they willoiily round oill therecesses on each side of points 14V in forming that partofthe blank.However, `a gage positioned with relation to the cutters as de#V scribedwill. gage 'a shell only after a line ot from havebeen cut from saineand a line of points formed Athereon as shown in Figure 14.

To gage part of the lirst line of blanks in a new shell, as shown inFigure 18, or to gage the last blanks in each following lineas shown inFigure 16, a 11 designed like the one described is placed on thev otherend ot the series ot supporting pins with its grooved 'taced13 adjacentaiid'across the vertical. central line ot blank l113 that is in line C.`T he distance between the vertical central. line 114 across gage 11 andthe vertical central line 1154 across its` adjacent cutter and 'supportis equal to the distance ot one anda. halt recessesl iiiade by a cutterin the shell, namely, the diameter oic one and a halt blanks plus oneand a halt times the thickness of one wall of a cutter. i

The direction in which the gages gage depends entirely on their'position, namely, whether the upper `or lower gage is nearest theoperator. ln case the latter is nearest, as.

shown in ther drawings, the Voperator starts .cutting at that end of theshell that is nearest yboth lgages may be used as shown in Figure 15. Tocomplete the last blanks in each Yline the loiveieage 11 is used asshown in Figure 16. lt will be obvious that either one or bothgagesjinay be usedwith a single cutter in which case the theupper 11would preferably be in aderigid with the suppciting` pin. A considerablepercentage ot the shells Vare white bodiedaud yellow tipped.V It is theprac ceto cut these two parts of the shell separate. so as to savethelabor ot resortingl the two gra -s of blanks. When. the white poi'- tionis cutV iirstthe rages may be removed or pressed. into theirbearingsbyjthe overlappine ortion et the shell. The springs 18 as in F gire 1, or 100 in .Figures 8 and 9,' will always return the gages intooperative position. Y

The 716035Z stock.

integral with bed 2 supj'iorting the tail stock areJV two standardsnumbered 116 and 11? Yrespectively w iich have openingsV that lv of thesaine internal diameter.

are preterab liountedinthe standard 116 are bearings .11,8'and 119 andin standard 117.. is a bearing 120 in which are rotatably mounteda'series ot parallel spindles 1.21;each of which carries a near-thereonand numbered respectively 122 a id. ieee.

ioe

iit

iso

These gears, as shown in Figures 3, are placed preferably in staggeredrelation to each other, permitting the use of larger spindles andgearing.

llashers 123 are loosely mounted on spindles 121. Plate 12a is alsoloosely mounted on spindles 121 and keeps gears from longitudinalmovement.

Gears 125 preferably integral with spindles 126 are rotatably mounted inbearings 119 and 126, preferably at right angles with the plane of thecutter spindles and made to mesh with gear 122k. llllasliers 127 areloosely niouiited on spindles 126.

Internal gear 123 rotatably mounted between standards 116 and 117 inbushings 129 meshes with gears 122 and gears 125 and car ries a pulley136, belted to any suitable source of power. hucls 131 are mounted inbearing 118 and carry threads 132 to mesh with threads on spindles 121.rlhe front end of each chuck is reduced and provided with threads 131 tomesh withV the threads 135 in chuck sleeve 135. A shell 136 is taperedas at 136 to mesh with taper 136 in the chuck head. The shell 136 shouldbe slotted alongone side, so that it may be compressed and brought intogripping contact with taper 136 and cutter 109 when sleeve is tightenedon the threads on the chuck. Apertures 133,

r any other suitable means may be formed ou chuck to all'ord a suregripping' surface whereby it may be held and tightened on spindle. Theadjacent chucks run in opposite directions and are made full size.between centers so that any pair of chucks are in rolling contact 'witheach other through their entire length, permitting the use of larger andstronger chucks. The adjacent cutters may be spaced apart precisely thedistance equal to the internal diaiiieter of cutter. "lowever, to permita freer adjustment of the shell, the machine is preferably made a slightdeoversize.

llpeifturira 't3-il in rhuclz shell 135 or any' other suitable means,may be forn'ied thereon whereby said shell may be held and tightened onchuck to fi ten cutter therein.

Nuts 137 threaded on spindles 1.21 at 133 and bearing against thrustcollars 139 in apertures 1&10 in bearing` 126, and chucks 131 mounted inbearing 118, threaded on the spindles 121 at 132 and bearing againstthrust collars 1/11 mounted in apertures 1&2 formed in hear. of 119.prevent siiindles from enfludse movement. The threads in the shell runin the saine direction as the threads 1.32 in the chuclt. The threads132 and 138 on each spindle run in an opposite direction. rllhe .'aniethreads on the adjacent spindles run opposite each other.

1t will be seen that when the spindles are rotated in an oppositedirection to each other and to these threads, the nuts 137, chucks 131,and shell 135 will not be loosened thereon.

Bearings 118 and 126 have flanged ends 143 whereby they may be readilyremoved from the standards.

A plate 144 is slidably mounted between standards 145 supported on bed 2and is suitably formed to fit into grooves 1417 in said standards.

Ejector rods 1118 loosely mounted in aperturcs 1119 in said plate haveenlarged heads so as not to puncture the blanks while ejecting same, andare held in the apertures 149 by collars 151 carrying set screw 152 tobe fastened en the rods 148, and prevent saine from endwise movement inapertures 14.9.

A .forked lever 153, loosely fitting in apertures 154 foi-ined in theplate 14a between passages for adjacent rods, is pivoted at 155 inupriglits 156, made integral with standards ll, and fulcrumed at 157 topiston rod 158 actuated by piston 159 from pressure in cylinder ST, andworks the ejector mechanism.

A spring 166 coiled on rod 1.53 between piston and cylinder wall tendsto return the ejectors after the exhaust of pressure from cylinder 87.

The cutter remover.

To facilitate, the removal of the cutter from the chuck l provide a pin161 with ahead 162 ofa diameter equal to the outside diameter ofa cutterand a shank 163, preferably smaller in diameter than 'the inside of acutter. Head 162 Vhas its outer end tapered as shown at 164 and itsinner end cut at right angles with it forming a shoulder 165. The head162 of pin is slotted endwise and crosswise as at 166, said slotsextending considerably into the shank so that the head may be easil7compressed, and reduced to the inside diam- ."f

eter of the cutter.

ln operation: lifter chuck shell 135 is removed, pin 161 is placed withits tapered head into cutter and forced through it. When the headefqiands the shoulder 165 is brought to hear against the inner end ofthe cutter, as shown in Figure 19, and a slight blow of the ejector rodon the head of pin 161 will remove the cutter. y The operation of amachine where pins are adjusted by means of fluid pressure is asfollows: rlllie shell is placed on the supporting pins, the valve isopened permitting pressure to enter cylinder d8 moving the pins and theshell for the cutting operation. Turning the valve back will exhaustsaid pressure llO permitting Vthe spring 66 to return the pins to Ytheir normal position and introduce pressure into cylinder 87 workingthe ejectors. The shell is again deposited on the supporting pins, 'thevalve is pulled forward, opening the exhaust in cylinder 8l', permittingthe spring to return the ejectors to their normal position and openingthe inlet in cylinder 4:8, moving the pins and shell under the cuttersas before for performing the cutting operation. It Will be understoodthat the number of sets of tools shown in Figures 3 and 4 isillustrative and that a greater or lesser number of sets may beemployed. rI'he c operation of the machine upon the shell Would remainrelatively the same.

ln practice the shell is placed'on the sup. port with theiiaky side andit is therefore suggested to gradually Vreduce the pressure on pins Whencutters have reached this part ofthe shell and before they havecompletely cut through the shell, because the supports are tensionedWhile the pearl or harder part ofV the shell is being cut, and thistension with a gradually reduced pressure is sufficient to cut cleanthrough this soft part of the shell. p l

It will be obvious that the supports shown in Figures l and 8 may bemounted on atail stock operated by a hand lever. However, the strain onthe operator would be great considering that several thousand cuts aremade daily. Vith the device shown these cuts and so many ejectionsofblanks can be performed by fluid pressure involving merely a lightturn of a valve handle one Way or another. The additional cost ofmaintenance Will be negligible incomparison With the largerproduction'ol better blanks.

Having thus described the preferred form of my invention, what I claimas new and desire to secure byvLetters Patent is,- y

1. In a machine for operating uponthe stock from which button blanksarecut, the `combination of a plurality of cutting tools, slidably mountedstock supporting tools, each supporting the stock opposite a cutter, andlan equalizing iiuid pressure for causing the supportingtools to supportthe stock simultaneously and evenly. Y

Y 2. In a button blank cutting lmachine,the combination of a series jot'supporting pins n islidably mounted in bearings and a live'tluid thepins.

pressure for actuatingtlie movement of the pins, the .pins in the seriesco-operating for evenly distributing the pressure at the supportingpoints, and manipulative means for controllingthe fluid pressure to andfrom 3. ln a button blank cutting machine, the

combination cita plurality of cylinders, a`

each piston, a cutter opposite each support and a valve controlling a`iluid under even pressure or simultaneouslyactuating 'the movementofthe several pistons and supports.

A device for supporting, gaging and steadying the ystock from whichbutton blanks arecut, said device comprising a body Vto thecooperatingtools by engaging theV stock at a point between twopreviousfcuts so as to Vposition the stock under the tools in suchvrelation as to cause the tools to cut blanks from the stock, Vone blankbetween two adjacent recesses made by preceding cuts in the stock andanother at a point in advance of` the recesses ot' the preceding cuts.

. 6. ln a button blank cutting machin-e, the combination of a series oftubular cutting Vtools anda series of Slidably mounted stock supportingtools, ejectors to clear the blanks from the cutters, the supports andejectors beingadapted to be actuated for movement by fluid pressure, andmeans for conveying theiluid pressureconnected respectively with saidejectors and supports.

Y 7. In a blank cutting machine, the com bination of a plurality otspindles, a cutter for each spindle, the free ends ot the spindles beingthreaded in a direction opposite to each other and the threads ofV onespindle running opposite to the threadsot an adjacentA spindle, bearingsfor the spindles, a member with corresponding threads for each spindleto secure the cutter thereto, a mein-V ber With corresponding threadsVat the other end of each spindle,cooperating With the cutter securingmember and shoulders on said bearings to keep said spindles axially atrest in their bearings, and means viter rctat-` ing the adjacentspindles together andin a direction oppositeto eachother 'andioppositeto their running threads.

SAAC H. GLEXCH.V

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